CN-122026128-A - Antenna assembly and electronic equipment

CN122026128ACN 122026128 ACN122026128 ACN 122026128ACN-122026128-A

Abstract

The embodiment of the invention discloses an antenna assembly and electronic equipment, wherein a plurality of array units are distributed in a circular array mode, and a radio frequency circuit feeds electromagnetic signals to an array antenna through a plurality of signal transmission parts respectively. The phase difference of two adjacent array units is configured to a predetermined angle to generate a vortex electromagnetic wave. Therefore, the radio frequency circuit can be used for rapidly switching the phase angles of the array units by utilizing the plurality of signal transmission parts, and further vortex electromagnetic waves with different phase change trends are produced. Therefore, by utilizing the characteristic that vortex electromagnetic waves in different modes are not mutually interfered, a plurality of data streams transmitted by the antenna assembly can multiplex the same frequency band, and the frequency spectrum utilization rate and the communication capacity are improved.

Inventors

Request for anonymity
JIANG MENG
ZHAO XUEWEI
LIU GANGWEI

Assignees

立讯智造(浙江)有限公司

Dates

Publication Date: 20260512
Application Date: 20260112

Claims (10)

1. An antenna assembly, wherein the antenna assembly comprises: A radio frequency circuit; A plurality of signal transmission parts, and The array antenna comprises a plurality of array units corresponding to the signal transmission parts, the array units are distributed in a circular array, the array units comprise radiation parts, and the array units are in communication connection with the radio frequency circuit through the corresponding signal transmission parts; The radio frequency circuit is configured to send electromagnetic signals to the plurality of array units through the plurality of signal transmission parts respectively, in the arrangement direction of the plurality of array units, the phase angles of the electromagnetic signals corresponding to the plurality of array units are sequentially increased or decreased, and the phase difference of the electromagnetic signals corresponding to two adjacent array units is phi, so as to generate vortex electromagnetic waves, wherein phi= (2 pi L)/6, -3< L <3, and L is a non-zero integer.
2. The antenna assembly of claim 1, wherein the radiating portion is a disc having at least one radiating slot, the radiating slot having a center point, the disc having a center point, the center point being the center of the disc and being located at the center of the radiating slot; The radius of the circle where the plurality of center points are located is 100mm.
3. The antenna assembly of claim 2, wherein at least one of the radiating slots is a plurality of the radiating slots, the center points of the plurality of radiating slots being coincident; The plurality of radiation slits comprise a first radiation slit and two second radiation slits, the two second radiation slits are arranged in mirror symmetry relative to the first radiation slit, and the plurality of first radiation slits are arranged in parallel.
4. The antenna assembly of claim 3, wherein the array antenna further comprises a dielectric plate having a first layout face; The number of the plurality of array units is six, and the six radiating parts are uniformly distributed on the first layout surface.
5. The antenna assembly of claim 4, wherein the radiating portion is a conductive pattern and has a first feeding point and a second feeding point, the first feeding point and the second feeding point are located at both sides of the center point, and an arrangement direction of the first feeding point and the second feeding point is perpendicular to a length direction of the first radiating slot.
6. The antenna assembly of claim 5, wherein the dielectric plate further has a second layout face and a first connection hole, the first connection hole being located at a center of the dielectric plate; The array unit further comprises a grounding pattern which is arranged on the second layout surface and is electrically connected with the first feeding point and the second feeding point through the first connecting hole.
7. The antenna assembly of claim 6, wherein the ground pattern has a second connection hole corresponding to the first connection hole; the signal transmission part comprises a radio frequency connector, the radio frequency connector comprises a radio frequency connector and a connecting seat, the radio frequency connector is provided with a contact pin and a conductor shell, and the connecting seat is arranged in the corresponding second connecting hole; The radio frequency connector is fixedly connected with the corresponding connecting seat, the contact pin penetrates through the corresponding connecting seat and the first connecting hole and is electrically connected with the first feeding point and the second feeding point, and the conductor shell is electrically connected with the grounding pattern.
8. The antenna assembly of claim 5, wherein the dielectric plate is configured to have a width and length of 300mm, a thickness of 3.1mm, a dielectric constant of 4.4, and a tangent loss angle of 0.02 °.
9. The antenna assembly of claim 5, wherein the antenna assembly has two modes that are degenerate modes.
10. An electronic device, the electronic device comprising: the antenna assembly of any one of claims 1-9.

Description

Antenna assembly and electronic equipment Technical Field The present invention relates to the field of communications technologies, and in particular, to an antenna assembly and an electronic device. Background With the continuous development of radio frequency technology, the requirement on the transceiving performance of an antenna is higher and higher. For example, in the field of radio frequency identification, the success rate of identification of radio frequency tags by readers is limited due to factors such as distance, loop shape, etc. Especially when there are many radio frequency tags, the recognition efficiency is also reduced. How to optimize the recognition efficiency becomes a problem to be solved. Disclosure of Invention In view of the foregoing, the present invention provides a plurality of embodiments of an antenna assembly and an electronic device, wherein at least one embodiment is capable of connecting a plurality of signal transmission portions between a radio frequency circuit and an array antenna, so that the radio frequency circuit can feed electromagnetic signals to corresponding array units through the plurality of signal transmission portions. Thus, when the phase angle of each array unit satisfies a specific value, the antenna assembly may excite a vortex electromagnetic wave, thereby optimizing recognition efficiency. According to a first aspect of an embodiment of the present invention, there is provided an antenna assembly, the antenna group comprising: A radio frequency circuit; A plurality of signal transmission parts, and The array antenna comprises a plurality of array units corresponding to the signal transmission parts, the array units are distributed in a circular array, the array units comprise radiation parts, and the array units are in communication connection with the radio frequency circuit through the corresponding signal transmission parts; The radio frequency circuit is configured to send electromagnetic signals to the plurality of array units through the plurality of signal transmission parts respectively, in the arrangement direction of the plurality of array units, the phase angles of the electromagnetic signals corresponding to the plurality of array units are sequentially increased or decreased, and the phase difference of the electromagnetic signals corresponding to two adjacent array units is phi, so as to generate vortex electromagnetic waves, wherein phi= (2 pi L)/6, -3< L <3, and L is a non-zero integer. Further, the radiation part is a wafer, the wafer is provided with at least one radiation slit, the radiation slit is provided with a center point, the wafer is provided with a center point, and the center point is the center of the wafer and is positioned at the center of the radiation slit; The radius of the circle where the plurality of center points are located is 100mm. Further, at least one radiation slit is a plurality of radiation slits, and the center points of the plurality of radiation slits coincide; The plurality of radiation slits comprise a first radiation slit and two second radiation slits, the two second radiation slits are arranged in mirror symmetry relative to the first radiation slit, and the plurality of first radiation slits are arranged in parallel. Further, the array antenna further comprises a dielectric plate, wherein the dielectric plate is provided with a first layout surface; The number of the plurality of array units is six, and the six radiating parts are uniformly distributed on the first layout surface. Further, the radiation portion is a conductive pattern and has a first feeding point and a second feeding point, the first feeding point and the second feeding point are located at two sides of the center point, and an arrangement direction of the first feeding point and the second feeding point is perpendicular to a length direction of the first radiation slit. Further, the dielectric plate is also provided with a second layout surface and a first connecting hole, and the first connecting hole is positioned in the center of the dielectric plate; The array unit further comprises a grounding pattern which is arranged on the second layout surface and is electrically connected with the first feeding point and the second feeding point through the first connecting hole. Further, the ground pattern has a second connection hole corresponding to the first connection hole; the signal transmission part comprises a radio frequency connector, the radio frequency connector comprises a radio frequency connector and a connecting seat, the radio frequency connector is provided with a contact pin and a conductor shell, and the connecting seat is arranged in the corresponding second connecting hole; The radio frequency connector is fixedly connected with the corresponding connecting seat, the contact pin penetrates through the corresponding connecting seat and the first connecting hole and is electrically connected with the first feedi